There is disclosed an electric discharge lamp fixture and a process of assembling a modular germicidal system. The electric discharge lamp fixture may be attached to and receive substantial mechanical support solely from at least one other electric discharge lamp fixture. The process of assembling the modular germicidal system may comprise electrically connecting an electric discharge lamp fixture to an other electric discharge lamp fixture, wherein connecting the electric discharge lamp fixture to the other electric discharge lamp fixture aligns the electric discharge lamp fixture for mounting to the other electric discharge lamp fixture. The process of assembling the modular germicidal system may comprise mounting the electric discharge lamp fixture to the other electric discharge lamp fixture, wherein the electric discharge lamp fixture receives substantial mechanical support solely from at least the other electric discharge lamp fixture.